<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '2489'
                                          'artist'  'Artiste'
                                     'text_people'  ''
                                         'release'  'Album'
                                           'title'  'Piste 01'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['archive', 'oi live']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-japan'
                                             'bpm'  '84.703'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d75460>

'APIC:'                                             type PictureType.OTHER (Other) b''<br/>                                     <img style="width:150px" src="image?fid=1269934"/>
'TALB' (Album/Movie/Show title)                     'Album'
'TBPM' (BPM (beats per minute))                     '84.703'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-japan'
'TIT2' (Title/songname/content description)         'Piste 01'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '2489965'
'TPE1' (Lead performer(s)/Soloist(s))               'Artiste'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['archive', 'oi live']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.41 dB'
'TXXX:replaygain_track_peak'                        '0.554255'

========================== row from database ==========================
                                              'id'  1269934
                                            'path'  /data/Music/Bulk/00localcharacter/Artiste - Tokyo Ska Paradise Orchestra/tspo - live in belfort 05-07-03 radiorip 40 minutes.mp3.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  2489
                                           'genre'  loc-asia-japan
                                        'filesize'  39841499
                                           'mtime'  1637330168
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Tokyo Ska Paradise Orchestra tspo live in belfort 05 07 03 radiorip 40 minutes.mp3 loc asia japan
                                      'tag_artist'  Artiste
                                     'tag_release'  Album
                                       'tag_title'  Piste 01
                                             'bpm'  84.703
                                    'search_title'  'piste':1
                                   'search_artist'  'artiste':1
                                  'search_release'  'album':1
                                     'search_rest'  '40':10 'asia':15 'belfort':8 'in':7 'japan':16 'live':6 'loc':14 'minutes':11 'minutesmp3':13 'mp3':12 'orchestra':4 'paradise':3 'radiorip':9 'ska':2 'tokyo':1 'tspo':5
                                    'search_combo'  '40':13 'album':3C 'artiste':2B 'asia':18 'belfort':11 'in':10 'japan':19 'live':9 'loc':17 'minutes':14 'minutesmp3':16 'mp3':15 'orchestra':7 'paradise':6 'piste':1A 'radiorip':12 'ska':5 'tokyo':4 'tspo':8
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['archive', 'oi live']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330167.6186433  (2021-11-19 14:56:07)
                             'size'  39841499